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Investigation into Ontario County Landfill landslide continues months later

  • / Updated:
  • Staff Report 

What caused the landslide at the Ontario County Landfill last November?

An independent engineering firm is still investigating the cause of a soil cover breach at the Ontario County Landfill that occurred on November 16, 2023.

Finger Lakes Partners (Billboard)

This update was shared with the Ontario County Board of Supervisors’ Planning & Environmental Quality Committee on May 20.

Officials with Casella insist there are no indications of future problems following that incident.

The breach affected about 3.5 acres on the southwest side of the landfill, causing 10,000 to 15,000 cubic yards of soil to slide and damage several gas-collection wells.